1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * ibmvfc.h -- driver for IBM Power Virtual Fibre Channel Adapter
5 * Written By: Brian King <brking@linux.vnet.ibm.com>, IBM Corporation
7 * Copyright (C) IBM Corporation, 2008
13 #include <linux/list.h>
14 #include <linux/types.h>
15 #include <scsi/viosrp.h>
17 #define IBMVFC_NAME "ibmvfc"
18 #define IBMVFC_DRIVER_VERSION "1.0.11"
19 #define IBMVFC_DRIVER_DATE "(April 12, 2013)"
21 #define IBMVFC_DEFAULT_TIMEOUT 60
22 #define IBMVFC_ADISC_CANCEL_TIMEOUT 45
23 #define IBMVFC_ADISC_TIMEOUT 15
24 #define IBMVFC_ADISC_PLUS_CANCEL_TIMEOUT \
25 (IBMVFC_ADISC_TIMEOUT + IBMVFC_ADISC_CANCEL_TIMEOUT)
26 #define IBMVFC_INIT_TIMEOUT 120
27 #define IBMVFC_ABORT_TIMEOUT 8
28 #define IBMVFC_ABORT_WAIT_TIMEOUT 40
29 #define IBMVFC_MAX_REQUESTS_DEFAULT 100
31 #define IBMVFC_DEBUG 0
32 #define IBMVFC_MAX_TARGETS 1024
33 #define IBMVFC_MAX_LUN 0xffffffff
34 #define IBMVFC_MAX_SECTORS 0xffffu
35 #define IBMVFC_MAX_DISC_THREADS 4
36 #define IBMVFC_TGT_MEMPOOL_SZ 64
37 #define IBMVFC_MAX_CMDS_PER_LUN 64
38 #define IBMVFC_MAX_HOST_INIT_RETRIES 6
39 #define IBMVFC_MAX_TGT_INIT_RETRIES 3
40 #define IBMVFC_DEV_LOSS_TMO (5 * 60)
41 #define IBMVFC_DEFAULT_LOG_LEVEL 2
42 #define IBMVFC_MAX_CDB_LEN 16
43 #define IBMVFC_CLS3_ERROR 0
46 * Ensure we have resources for ERP and initialization:
48 * 1 for initialization
51 * 2 for each discovery thread
53 #define IBMVFC_NUM_INTERNAL_REQ (1 + 1 + 1 + 2 + (disc_threads * 2))
55 #define IBMVFC_MAD_SUCCESS 0x00
56 #define IBMVFC_MAD_NOT_SUPPORTED 0xF1
57 #define IBMVFC_MAD_FAILED 0xF7
58 #define IBMVFC_MAD_DRIVER_FAILED 0xEE
59 #define IBMVFC_MAD_CRQ_ERROR 0xEF
61 enum ibmvfc_crq_valid {
62 IBMVFC_CRQ_CMD_RSP = 0x80,
63 IBMVFC_CRQ_INIT_RSP = 0xC0,
64 IBMVFC_CRQ_XPORT_EVENT = 0xFF,
67 enum ibmvfc_crq_init_msg {
68 IBMVFC_CRQ_INIT = 0x01,
69 IBMVFC_CRQ_INIT_COMPLETE = 0x02,
72 enum ibmvfc_crq_xport_evts {
73 IBMVFC_PARTNER_FAILED = 0x01,
74 IBMVFC_PARTNER_DEREGISTER = 0x02,
75 IBMVFC_PARTITION_MIGRATED = 0x06,
78 enum ibmvfc_cmd_status_flags {
79 IBMVFC_FABRIC_MAPPED = 0x0001,
80 IBMVFC_VIOS_FAILURE = 0x0002,
81 IBMVFC_FC_FAILURE = 0x0004,
82 IBMVFC_FC_SCSI_ERROR = 0x0008,
83 IBMVFC_HW_EVENT_LOGGED = 0x0010,
84 IBMVFC_VIOS_LOGGED = 0x0020,
87 enum ibmvfc_fabric_mapped_errors {
88 IBMVFC_UNABLE_TO_ESTABLISH = 0x0001,
89 IBMVFC_XPORT_FAULT = 0x0002,
90 IBMVFC_CMD_TIMEOUT = 0x0003,
91 IBMVFC_ENETDOWN = 0x0004,
92 IBMVFC_HW_FAILURE = 0x0005,
93 IBMVFC_LINK_DOWN_ERR = 0x0006,
94 IBMVFC_LINK_DEAD_ERR = 0x0007,
95 IBMVFC_UNABLE_TO_REGISTER = 0x0008,
96 IBMVFC_XPORT_BUSY = 0x000A,
97 IBMVFC_XPORT_DEAD = 0x000B,
98 IBMVFC_CONFIG_ERROR = 0x000C,
99 IBMVFC_NAME_SERVER_FAIL = 0x000D,
100 IBMVFC_LINK_HALTED = 0x000E,
101 IBMVFC_XPORT_GENERAL = 0x8000,
104 enum ibmvfc_vios_errors {
105 IBMVFC_CRQ_FAILURE = 0x0001,
106 IBMVFC_SW_FAILURE = 0x0002,
107 IBMVFC_INVALID_PARAMETER = 0x0003,
108 IBMVFC_MISSING_PARAMETER = 0x0004,
109 IBMVFC_HOST_IO_BUS = 0x0005,
110 IBMVFC_TRANS_CANCELLED = 0x0006,
111 IBMVFC_TRANS_CANCELLED_IMPLICIT = 0x0007,
112 IBMVFC_INSUFFICIENT_RESOURCE = 0x0008,
113 IBMVFC_PLOGI_REQUIRED = 0x0010,
114 IBMVFC_COMMAND_FAILED = 0x8000,
117 enum ibmvfc_mad_types {
118 IBMVFC_NPIV_LOGIN = 0x0001,
119 IBMVFC_DISC_TARGETS = 0x0002,
120 IBMVFC_PORT_LOGIN = 0x0004,
121 IBMVFC_PROCESS_LOGIN = 0x0008,
122 IBMVFC_QUERY_TARGET = 0x0010,
123 IBMVFC_MOVE_LOGIN = 0x0020,
124 IBMVFC_IMPLICIT_LOGOUT = 0x0040,
125 IBMVFC_PASSTHRU = 0x0200,
126 IBMVFC_TMF_MAD = 0x0100,
127 IBMVFC_NPIV_LOGOUT = 0x0800,
128 IBMVFC_CHANNEL_ENQUIRY = 0x1000,
129 IBMVFC_CHANNEL_SETUP = 0x2000,
130 IBMVFC_CONNECTION_INFO = 0x4000,
133 struct ibmvfc_mad_common {
140 } __packed __aligned(8);
142 struct ibmvfc_npiv_login_mad {
143 struct ibmvfc_mad_common common;
144 struct srp_direct_buf buffer;
145 } __packed __aligned(8);
147 struct ibmvfc_npiv_logout_mad {
148 struct ibmvfc_mad_common common;
149 } __packed __aligned(8);
151 #define IBMVFC_MAX_NAME 256
153 struct ibmvfc_npiv_login {
155 #define IBMVFC_OS_LINUX 0x02
160 __be32 partition_num;
161 __be32 vfc_frame_version;
164 #define IBMVFC_CLIENT_MIGRATED 0x01
165 #define IBMVFC_FLUSH_ON_HALT 0x02
168 #define IBMVFC_CAN_MIGRATE 0x01
169 #define IBMVFC_CAN_USE_CHANNELS 0x02
170 #define IBMVFC_CAN_HANDLE_FPIN 0x04
172 struct srp_direct_buf async;
173 u8 partition_name[IBMVFC_MAX_NAME];
174 u8 device_name[IBMVFC_MAX_NAME];
175 u8 drc_name[IBMVFC_MAX_NAME];
177 } __packed __aligned(8);
179 struct ibmvfc_common_svc_parms {
183 __be16 bb_rcv_sz; /* upper nibble is BB_SC_N */
186 } __packed __aligned(4);
188 struct ibmvfc_service_parms {
189 struct ibmvfc_common_svc_parms common;
192 __be32 class1_parms[4];
193 __be32 class2_parms[4];
194 __be32 class3_parms[4];
196 __be32 vendor_version[4];
197 __be32 services_avail[2];
200 __be32 clk_sync_qos[2];
202 } __packed __aligned(4);
204 struct ibmvfc_npiv_login_resp {
209 #define IBMVFC_NATIVE_FC 0x01
212 #define IBMVFC_CAN_FLUSH_ON_HALT 0x08
213 #define IBMVFC_CAN_SUPPRESS_ABTS 0x10
214 #define IBMVFC_CAN_SUPPORT_CHANNELS 0x20
222 u8 partition_name[IBMVFC_MAX_NAME];
223 u8 device_name[IBMVFC_MAX_NAME];
224 u8 port_loc_code[IBMVFC_MAX_NAME];
225 u8 drc_name[IBMVFC_MAX_NAME];
226 struct ibmvfc_service_parms service_parms;
228 } __packed __aligned(8);
230 union ibmvfc_npiv_login_data {
231 struct ibmvfc_npiv_login login;
232 struct ibmvfc_npiv_login_resp resp;
233 } __packed __aligned(8);
235 struct ibmvfc_discover_targets_entry {
239 #define IBMVFC_DISC_TGT_SCSI_ID_MASK 0x00ffffff
240 } __packed __aligned(8);
242 struct ibmvfc_discover_targets {
243 struct ibmvfc_mad_common common;
244 struct srp_direct_buf buffer;
246 #define IBMVFC_DISC_TGT_PORT_ID_WWPN_LIST 0x02
253 } __packed __aligned(8);
255 enum ibmvfc_fc_reason {
256 IBMVFC_INVALID_ELS_CMD_CODE = 0x01,
257 IBMVFC_INVALID_VERSION = 0x02,
258 IBMVFC_LOGICAL_ERROR = 0x03,
259 IBMVFC_INVALID_CT_IU_SIZE = 0x04,
260 IBMVFC_LOGICAL_BUSY = 0x05,
261 IBMVFC_PROTOCOL_ERROR = 0x07,
262 IBMVFC_UNABLE_TO_PERFORM_REQ = 0x09,
263 IBMVFC_CMD_NOT_SUPPORTED = 0x0B,
264 IBMVFC_SERVER_NOT_AVAIL = 0x0D,
265 IBMVFC_CMD_IN_PROGRESS = 0x0E,
266 IBMVFC_VENDOR_SPECIFIC = 0xFF,
269 enum ibmvfc_fc_type {
270 IBMVFC_FABRIC_REJECT = 0x01,
271 IBMVFC_PORT_REJECT = 0x02,
272 IBMVFC_LS_REJECT = 0x03,
273 IBMVFC_FABRIC_BUSY = 0x04,
274 IBMVFC_PORT_BUSY = 0x05,
275 IBMVFC_BASIC_REJECT = 0x06,
278 enum ibmvfc_gs_explain {
279 IBMVFC_PORT_NAME_NOT_REG = 0x02,
282 struct ibmvfc_port_login {
283 struct ibmvfc_mad_common common;
286 __be16 fc_service_class;
290 __be16 error; /* also fc_reason */
294 struct ibmvfc_service_parms service_parms;
295 struct ibmvfc_service_parms service_parms_change;
297 } __packed __aligned(8);
299 struct ibmvfc_move_login {
300 struct ibmvfc_mad_common common;
306 #define IBMVFC_MOVE_LOGIN_IMPLICIT_OLD_FAILED 0x01
307 #define IBMVFC_MOVE_LOGIN_IMPLICIT_NEW_FAILED 0x02
308 #define IBMVFC_MOVE_LOGIN_PORT_LOGIN_FAILED 0x04
310 struct ibmvfc_service_parms service_parms;
311 struct ibmvfc_service_parms service_parms_change;
313 __be16 service_class;
315 #define IBMVFC_MOVE_LOGIN_VF_NOT_SENT_ADAPTER 0x01
317 } __packed __aligned(8);
319 struct ibmvfc_prli_svc_parms {
321 #define IBMVFC_SCSI_FCP_TYPE 0x08
324 #define IBMVFC_PRLI_ORIG_PA_VALID 0x8000
325 #define IBMVFC_PRLI_RESP_PA_VALID 0x4000
326 #define IBMVFC_PRLI_EST_IMG_PAIR 0x2000
329 __be32 service_parms;
330 #define IBMVFC_PRLI_TASK_RETRY 0x00000200
331 #define IBMVFC_PRLI_RETRY 0x00000100
332 #define IBMVFC_PRLI_DATA_OVERLAY 0x00000040
333 #define IBMVFC_PRLI_INITIATOR_FUNC 0x00000020
334 #define IBMVFC_PRLI_TARGET_FUNC 0x00000010
335 #define IBMVFC_PRLI_READ_FCP_XFER_RDY_DISABLED 0x00000002
336 #define IBMVFC_PRLI_WR_FCP_XFER_RDY_DISABLED 0x00000001
337 } __packed __aligned(4);
339 struct ibmvfc_process_login {
340 struct ibmvfc_mad_common common;
342 struct ibmvfc_prli_svc_parms parms;
345 __be16 error; /* also fc_reason */
348 } __packed __aligned(8);
350 struct ibmvfc_query_tgt {
351 struct ibmvfc_mad_common common;
359 } __packed __aligned(8);
361 struct ibmvfc_implicit_logout {
362 struct ibmvfc_mad_common common;
365 } __packed __aligned(8);
368 struct ibmvfc_mad_common common;
372 #define IBMVFC_TMF_ABORT_TASK 0x02
373 #define IBMVFC_TMF_ABORT_TASK_SET 0x04
374 #define IBMVFC_TMF_LUN_RESET 0x10
375 #define IBMVFC_TMF_TGT_RESET 0x20
376 #define IBMVFC_TMF_LUA_VALID 0x40
377 #define IBMVFC_TMF_SUPPRESS_ABTS 0x80
379 __be32 my_cancel_key;
382 } __packed __aligned(8);
384 enum ibmvfc_fcp_rsp_info_codes {
385 RSP_NO_FAILURE = 0x00,
386 RSP_TMF_REJECTED = 0x04,
387 RSP_TMF_FAILED = 0x05,
388 RSP_TMF_INVALID_LUN = 0x09,
391 struct ibmvfc_fcp_rsp_info {
395 } __packed __aligned(2);
397 enum ibmvfc_fcp_rsp_flags {
399 FCP_BIDI_READ_RESID_UNDER = 0x40,
400 FCP_BIDI_READ_RESID_OVER = 0x20,
402 FCP_RESID_UNDER = 0x08,
403 FCP_RESID_OVER = 0x04,
404 FCP_SNS_LEN_VALID = 0x02,
405 FCP_RSP_LEN_VALID = 0x01,
408 union ibmvfc_fcp_rsp_data {
409 struct ibmvfc_fcp_rsp_info info;
410 u8 sense[SCSI_SENSE_BUFFERSIZE + sizeof(struct ibmvfc_fcp_rsp_info)];
411 } __packed __aligned(8);
413 struct ibmvfc_fcp_rsp {
415 __be16 retry_delay_timer;
419 __be32 fcp_sense_len;
421 union ibmvfc_fcp_rsp_data data;
422 } __packed __aligned(8);
424 enum ibmvfc_cmd_flags {
425 IBMVFC_SCATTERLIST = 0x0001,
426 IBMVFC_NO_MEM_DESC = 0x0002,
427 IBMVFC_READ = 0x0004,
428 IBMVFC_WRITE = 0x0008,
430 IBMVFC_CLASS_3_ERR = 0x0100,
433 enum ibmvfc_fc_task_attr {
434 IBMVFC_SIMPLE_TASK = 0x00,
435 IBMVFC_HEAD_OF_QUEUE = 0x01,
436 IBMVFC_ORDERED_TASK = 0x02,
437 IBMVFC_ACA_TASK = 0x04,
440 enum ibmvfc_fc_tmf_flags {
441 IBMVFC_ABORT_TASK_SET = 0x02,
442 IBMVFC_LUN_RESET = 0x10,
443 IBMVFC_TARGET_RESET = 0x20,
446 struct ibmvfc_fcp_cmd_iu {
452 #define IBMVFC_RDDATA 0x02
453 #define IBMVFC_WRDATA 0x01
454 u8 cdb[IBMVFC_MAX_CDB_LEN];
456 } __packed __aligned(4);
463 __be32 adapter_resid;
467 __be16 response_flags;
468 #define IBMVFC_ADAPTER_RESID_VALID 0x01
471 struct srp_direct_buf ext_func;
472 struct srp_direct_buf ioba;
473 struct srp_direct_buf resp;
478 struct ibmvfc_fcp_cmd_iu iu;
479 struct ibmvfc_fcp_rsp rsp;
480 } __packed __aligned(8);
482 struct ibmvfc_passthru_fc_iu {
484 #define IBMVFC_ADISC 0x52000000
488 struct ibmvfc_passthru_iu {
495 #define IBMVFC_FC_ELS 0x01
496 #define IBMVFC_FC_CT_IU 0x02
498 #define IBMVFC_PASSTHRU_CANCEL_KEY 0x80000000
499 #define IBMVFC_INTERNAL_CANCEL_KEY 0x80000001
501 struct srp_direct_buf cmd;
502 struct srp_direct_buf rsp;
507 } __packed __aligned(8);
509 struct ibmvfc_passthru_mad {
510 struct ibmvfc_mad_common common;
511 struct srp_direct_buf cmd_ioba;
512 struct ibmvfc_passthru_iu iu;
513 struct ibmvfc_passthru_fc_iu fc_iu;
514 } __packed __aligned(8);
516 struct ibmvfc_channel_enquiry {
517 struct ibmvfc_mad_common common;
519 #define IBMVFC_NO_CHANNELS_TO_CRQ_SUPPORT 0x01
520 #define IBMVFC_SUPPORT_VARIABLE_SUBQ_MSG 0x02
521 #define IBMVFC_NO_N_TO_M_CHANNELS_SUPPORT 0x04
522 __be32 num_scsi_subq_channels;
523 __be32 num_nvmeof_subq_channels;
524 __be32 num_scsi_vas_channels;
525 __be32 num_nvmeof_vas_channels;
526 } __packed __aligned(8);
528 struct ibmvfc_channel_setup_mad {
529 struct ibmvfc_mad_common common;
530 struct srp_direct_buf buffer;
531 } __packed __aligned(8);
533 #define IBMVFC_MAX_CHANNELS 502
535 struct ibmvfc_channel_setup {
537 #define IBMVFC_CANCEL_CHANNELS 0x01
538 #define IBMVFC_USE_BUFFER 0x02
539 #define IBMVFC_CHANNELS_CANCELED 0x04
541 __be32 num_scsi_subq_channels;
542 __be32 num_nvmeof_subq_channels;
543 __be32 num_scsi_vas_channels;
544 __be32 num_nvmeof_vas_channels;
545 struct srp_direct_buf buffer;
547 __be64 channel_handles[IBMVFC_MAX_CHANNELS];
548 } __packed __aligned(8);
550 struct ibmvfc_connection_info {
551 struct ibmvfc_mad_common common;
552 __be64 information_bits;
553 #define IBMVFC_NO_FC_IO_CHANNEL 0x01
554 #define IBMVFC_NO_PHYP_VAS 0x02
555 #define IBMVFC_NO_PHYP_SUBQ 0x04
556 #define IBMVFC_PHYP_DEPRECATED_SUBQ 0x08
557 #define IBMVFC_PHYP_PRESERVED_SUBQ 0x10
558 #define IBMVFC_PHYP_FULL_SUBQ 0x20
560 } __packed __aligned(8);
562 struct ibmvfc_trace_start_entry {
566 struct ibmvfc_trace_end_entry {
575 struct ibmvfc_trace_entry {
576 struct ibmvfc_event *evt;
584 #define IBMVFC_TRC_START 0x00
585 #define IBMVFC_TRC_END 0xff
587 struct ibmvfc_trace_start_entry start;
588 struct ibmvfc_trace_end_entry end;
590 } __packed __aligned(8);
592 enum ibmvfc_crq_formats {
593 IBMVFC_CMD_FORMAT = 0x01,
594 IBMVFC_ASYNC_EVENT = 0x02,
595 IBMVFC_MAD_FORMAT = 0x04,
598 enum ibmvfc_async_event {
599 IBMVFC_AE_ELS_PLOGI = 0x0001,
600 IBMVFC_AE_ELS_LOGO = 0x0002,
601 IBMVFC_AE_ELS_PRLO = 0x0004,
602 IBMVFC_AE_SCN_NPORT = 0x0008,
603 IBMVFC_AE_SCN_GROUP = 0x0010,
604 IBMVFC_AE_SCN_DOMAIN = 0x0020,
605 IBMVFC_AE_SCN_FABRIC = 0x0040,
606 IBMVFC_AE_LINK_UP = 0x0080,
607 IBMVFC_AE_LINK_DOWN = 0x0100,
608 IBMVFC_AE_LINK_DEAD = 0x0200,
609 IBMVFC_AE_HALT = 0x0400,
610 IBMVFC_AE_RESUME = 0x0800,
611 IBMVFC_AE_ADAPTER_FAILED = 0x1000,
612 IBMVFC_AE_FPIN = 0x2000,
615 struct ibmvfc_async_desc {
617 enum ibmvfc_async_event ae;
625 volatile __be64 ioba;
626 } __packed __aligned(8);
628 struct ibmvfc_crq_queue {
629 struct ibmvfc_crq *msgs;
631 dma_addr_t msg_token;
634 enum ibmvfc_ae_link_state {
635 IBMVFC_AE_LS_LINK_UP = 0x01,
636 IBMVFC_AE_LS_LINK_BOUNCED = 0x02,
637 IBMVFC_AE_LS_LINK_DOWN = 0x04,
638 IBMVFC_AE_LS_LINK_DEAD = 0x08,
641 enum ibmvfc_ae_fpin_status {
642 IBMVFC_AE_FPIN_LINK_CONGESTED = 0x1,
643 IBMVFC_AE_FPIN_PORT_CONGESTED = 0x2,
644 IBMVFC_AE_FPIN_PORT_CLEARED = 0x3,
645 IBMVFC_AE_FPIN_PORT_DEGRADED = 0x4,
648 struct ibmvfc_async_crq {
654 volatile __be64 event;
655 volatile __be64 scsi_id;
656 volatile __be64 wwpn;
657 volatile __be64 node_name;
659 } __packed __aligned(8);
661 struct ibmvfc_async_crq_queue {
662 struct ibmvfc_async_crq *msgs;
664 dma_addr_t msg_token;
668 struct ibmvfc_mad_common mad_common;
669 struct ibmvfc_npiv_login_mad npiv_login;
670 struct ibmvfc_npiv_logout_mad npiv_logout;
671 struct ibmvfc_discover_targets discover_targets;
672 struct ibmvfc_port_login plogi;
673 struct ibmvfc_process_login prli;
674 struct ibmvfc_move_login move_login;
675 struct ibmvfc_query_tgt query_tgt;
676 struct ibmvfc_implicit_logout implicit_logout;
677 struct ibmvfc_tmf tmf;
678 struct ibmvfc_cmd cmd;
679 struct ibmvfc_passthru_mad passthru;
680 struct ibmvfc_channel_enquiry channel_enquiry;
681 struct ibmvfc_channel_setup_mad channel_setup;
682 struct ibmvfc_connection_info connection_info;
683 } __packed __aligned(8);
685 enum ibmvfc_target_action {
686 IBMVFC_TGT_ACTION_NONE = 0,
687 IBMVFC_TGT_ACTION_INIT,
688 IBMVFC_TGT_ACTION_INIT_WAIT,
689 IBMVFC_TGT_ACTION_LOGOUT_RPORT,
690 IBMVFC_TGT_ACTION_LOGOUT_RPORT_WAIT,
691 IBMVFC_TGT_ACTION_DEL_RPORT,
692 IBMVFC_TGT_ACTION_DELETED_RPORT,
693 IBMVFC_TGT_ACTION_DEL_AND_LOGOUT_RPORT,
694 IBMVFC_TGT_ACTION_LOGOUT_DELETED_RPORT,
697 struct ibmvfc_target {
698 struct list_head queue;
699 struct ibmvfc_host *vhost;
703 struct fc_rport *rport;
705 enum ibmvfc_target_action action;
711 struct ibmvfc_service_parms service_parms;
712 struct ibmvfc_service_parms service_parms_change;
713 struct fc_rport_identifiers ids;
714 void (*job_step) (struct ibmvfc_target *);
715 struct timer_list timer;
719 /* a unit of work for the hosting partition */
720 struct ibmvfc_event {
721 struct list_head queue;
722 struct ibmvfc_host *vhost;
723 struct ibmvfc_target *tgt;
724 struct scsi_cmnd *cmnd;
726 union ibmvfc_iu *xfer_iu;
727 void (*done) (struct ibmvfc_event *);
728 struct ibmvfc_crq crq;
730 union ibmvfc_iu *sync_iu;
731 struct srp_direct_buf *ext_list;
732 dma_addr_t ext_list_token;
733 struct completion comp;
734 struct completion *eh_comp;
735 struct timer_list timer;
738 /* a pool of event structs for use */
739 struct ibmvfc_event_pool {
740 struct ibmvfc_event *events;
742 union ibmvfc_iu *iu_storage;
746 enum ibmvfc_host_action {
747 IBMVFC_HOST_ACTION_NONE = 0,
748 IBMVFC_HOST_ACTION_RESET,
749 IBMVFC_HOST_ACTION_REENABLE,
750 IBMVFC_HOST_ACTION_LOGO,
751 IBMVFC_HOST_ACTION_LOGO_WAIT,
752 IBMVFC_HOST_ACTION_INIT,
753 IBMVFC_HOST_ACTION_INIT_WAIT,
754 IBMVFC_HOST_ACTION_QUERY,
755 IBMVFC_HOST_ACTION_QUERY_TGTS,
756 IBMVFC_HOST_ACTION_TGT_DEL,
757 IBMVFC_HOST_ACTION_ALLOC_TGTS,
758 IBMVFC_HOST_ACTION_TGT_INIT,
759 IBMVFC_HOST_ACTION_TGT_DEL_FAILED,
762 enum ibmvfc_host_state {
774 struct list_head queue;
775 struct Scsi_Host *host;
776 enum ibmvfc_host_state state;
777 enum ibmvfc_host_action action;
778 #define IBMVFC_NUM_TRACE_INDEX_BITS 8
779 #define IBMVFC_NUM_TRACE_ENTRIES (1 << IBMVFC_NUM_TRACE_INDEX_BITS)
780 #define IBMVFC_TRACE_SIZE (sizeof(struct ibmvfc_trace_entry) * IBMVFC_NUM_TRACE_ENTRIES)
781 struct ibmvfc_trace_entry *trace;
782 u32 trace_index:IBMVFC_NUM_TRACE_INDEX_BITS;
784 struct list_head targets;
785 struct list_head sent;
786 struct list_head free;
788 struct ibmvfc_event_pool pool;
789 struct dma_pool *sg_pool;
791 struct ibmvfc_crq_queue crq;
792 struct ibmvfc_async_crq_queue async_crq;
793 struct ibmvfc_npiv_login login_info;
794 union ibmvfc_npiv_login_data *login_buf;
795 dma_addr_t login_buf_dma;
798 struct ibmvfc_discover_targets_entry *disc_buf;
799 struct mutex passthru_mutex;
802 int discovery_threads;
809 int aborting_passthru;
811 #define IBMVFC_AE_LINKUP 0x0001
812 #define IBMVFC_AE_LINKDOWN 0x0002
813 #define IBMVFC_AE_RSCN 0x0004
814 dma_addr_t disc_buf_dma;
815 unsigned int partition_number;
816 char partition_name[97];
817 void (*job_step) (struct ibmvfc_host *);
818 struct task_struct *work_thread;
819 struct tasklet_struct tasklet;
820 struct work_struct rport_add_work_q;
821 wait_queue_head_t init_wait_q;
822 wait_queue_head_t work_wait_q;
825 #define DBG_CMD(CMD) do { if (ibmvfc_debug) CMD; } while (0)
827 #define tgt_dbg(t, fmt, ...) \
828 DBG_CMD(dev_info((t)->vhost->dev, "%llX: " fmt, (t)->scsi_id, ##__VA_ARGS__))
830 #define tgt_info(t, fmt, ...) \
831 dev_info((t)->vhost->dev, "%llX: " fmt, (t)->scsi_id, ##__VA_ARGS__)
833 #define tgt_err(t, fmt, ...) \
834 dev_err((t)->vhost->dev, "%llX: " fmt, (t)->scsi_id, ##__VA_ARGS__)
836 #define tgt_log(t, level, fmt, ...) \
838 if ((t)->vhost->log_level >= level) \
839 tgt_err(t, fmt, ##__VA_ARGS__); \
842 #define ibmvfc_dbg(vhost, ...) \
843 DBG_CMD(dev_info((vhost)->dev, ##__VA_ARGS__))
845 #define ibmvfc_log(vhost, level, ...) \
847 if ((vhost)->log_level >= level) \
848 dev_err((vhost)->dev, ##__VA_ARGS__); \
851 #define ENTER DBG_CMD(printk(KERN_INFO IBMVFC_NAME": Entering %s\n", __func__))
852 #define LEAVE DBG_CMD(printk(KERN_INFO IBMVFC_NAME": Leaving %s\n", __func__))
854 #ifdef CONFIG_SCSI_IBMVFC_TRACE
855 #define ibmvfc_create_trace_file(kobj, attr) sysfs_create_bin_file(kobj, attr)
856 #define ibmvfc_remove_trace_file(kobj, attr) sysfs_remove_bin_file(kobj, attr)
858 #define ibmvfc_create_trace_file(kobj, attr) 0
859 #define ibmvfc_remove_trace_file(kobj, attr) do { } while (0)